Matching Pairs Unit 6_Energy_1Online version Energy by David Tordesillas 1 Geothermal energy 2 Light energy 3 Sound energy 4 Renewable energy sources 5 Wind energy 6 Solar, wind, water, biomass and geothermal 7 Solar energy 8 Biomass 9 Water energy This energy comes from a source that produces vibrations It is the most efficient energy and does not cause pollution This energy is the cleanest source of energy Renewable energy sources This energy can be natural or artificial It can damage wildlife habitats and bird populations These sources do not run out when we use them This energy is heat that comes from the centre of the Earth This energy can contributes to deforestation and global warming